O R D E R

The Writ Petition has been filed challenging the order of the first respondent made in Na.Ka.No.Pa.P.5(1)/65/3650/2010, dated 12.02.2010 and for consequential direction to revise the seniority and considering the date of appointment as a crucial date for further or subsequent promotion.

2. It is the case of the petitioner that he was appointed as Police Constable Grade II on 25.05.1988 in Armed Reserve Wing and on 24.09.1991, he was posted to Mounted Branch and he was upgraded as Grade I Police Constable on 25.10.1999 and thereafter as Head Constable on 28.10.2004. Along with the petitioner, several others were recruited and appointed as Police Constable Grade II in May 1988. Some of them were posted to Armed Reserve of Chennai City. Even though, the petitioner was initially posted to Armed Reserve Wing, thereafter he was transferred to Mounted Branch. Even though there are different units like Armed Reserve, Motor Transport, Mounted Branch, Local Police etc., only a common seniority is maintained among the police constables and there is no seniority with regard to a particular unit. To prepare 'C' list for promotion, only police constable posted to Armed Reserve Unit were